Home / 11,690.60-16,133.42-6,385.91

Finding the Fourth Proportional to 11,690.60, 16,133.42 and 6,385.91

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Solution

The fourth proportional to 11,690.60, 16,133.42 and 6,385.91 is: 8,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.60 : 16,133.42 = 6,385.91 : x
  2. Step 2: Convert to fraction form
    11,690.60/16,133.42 = 6,385.91/x
  3. Step 3: Cross multiply
    11,690.60x = 16,133.42 × 6,385.91
  4. Step 4: Simplify right side
    11,690.60x = 103,026,536.18
  5. Step 5: Solve for x
    x = 103,026,536.18/11,690.60
  6. Step 6: Final answer
    x = 8,812.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.